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My 2002 ford taurus se v6 ohv is having starting issues when…

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My 2002 ford taurus...

My 2002 ford taurus se v6 ohv is having starting issues when warmed up. What should I do?

Submitted: 1 month ago.Category: Ford
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Answered in 1 minute by:
3/25/2018
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago
A. Penland
A. Penland, Ford Senior Master Technician, ASE
Category: Ford
Satisfied Customers: 6,878
Experience: ASE Master Certified, ASE Advanced Gasoline Engine Performance
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When it is warmed up or reached operating temperature, is the engine problem a crank no start or a no crank?

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Customer reply replied 1 month ago
A crank no start and operating temperature
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

Can you give me the VIN# ***** I can look up the proper information and manuals for your 2002 Taurus?

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Customer reply replied 1 month ago
It also died the other day when i was sitting in it and it was just idling
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

Can you give me the VIN# ***** I can look up the proper information and manuals for your 2002 Taurus?

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Customer reply replied 1 month ago
IFAFP53UX2GI846I0
Customer reply replied 1 month ago
Sorry the vin is 1FAFP53UX2G184610
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

Ok. from the sounds f your problem and looking at the information I have, the problem is your fuel pump. It is, after all, an electrical motor, and when they heat up, they can fail electrically and mechanically. Then when they cool down, the y work fine till they reach operating temperature.

You can test this b checking the fuel injector fuel rail test port just to the drivers side of the engine near the intake manifold. Press the needle valve down and check for fuel pressure when it stalls and will not start.

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Customer reply replied 1 month ago
Is that the only thing it could be?
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

This is the most common problem. That is why I ask you to do the test first to verify that there is no fuel pressure. I like to verify before any repairs are made.

Do the test and reply back to me when you get the results. You can reply back on this page.

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Customer reply replied 1 month ago
i did what you said I drove it till it was at operating temp and then I turned it off and tried to turn it back on and it didnt turn over so i checked the fuel rail test port and it had good fuel pressure
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

Thank you. That eliminates the fuel pump as the problem. Now, we need to see if you have spark at the spark plugs.

When it will not start, turn the key to on and see if the check engine light comes on in the instrument cluster and try starting the engine see if the check engine light goes out while the engine is cranking over.

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Customer reply replied 1 month ago
I had an oil change and a tune up about 3 days ago after this problem started
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

Anything is possible. But I like to verify the cause.

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Customer reply replied 1 month ago
It does stay on but i also have a small evap system leak but thats cause by a pin hole i have in the hose going to the vaopr canister
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

Inspect the crankshaft position sensor on the front of the engine by the crankshaft pulley. The light should go out when the engine is cranking. If the PCM (Engine Computer) sees and RZPM signal from the crankshaft sensor, the light will go out while cranking.

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Customer reply replied 1 month ago
Its plugged in and seems okay but i dont have an multimeter or something to check the sensor with
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

Take a spark plug out and connect it back to the plug wire and place the spark plug on a good clean metal ground. The crank the engine and see if you get a bright blue/white spark.

DO NOT HOLD THE SPARK PLUG OR YOU WILL GET ZAPPED!!!

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Customer reply replied 1 month ago
Okay it sparked
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

Does the engine start?

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Customer reply replied 1 month ago
It does most of the time but it didn't when i took the spark plug out
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

Do you have a test light or digital multi meter to do a few electrical tests?
Also, do you have access to a code reader or scan tool?

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Customer reply replied 1 month ago
I have a code reader and i have scanned my car earlier and it only has the one p0400 small evap leak code and nothing else
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

That will not cause a no start.

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Customer reply replied 1 month ago
what's next? Is it the crankshaft sensor or something else?
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

No, if you got spark, it is good. I need you to check for power to an injector and a pulsed ground while the engine is cranking over.

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Customer reply replied 1 month ago
How can I do that without a multimeter or test light and i dont have a stethoscope to check an injector
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

You will need one of those. Otherwise, we are just guessing.

You have fuel pressure and you have spark.

Not trouble codes to show a no start.

The only thing left is the injectors.

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Customer reply replied 1 month ago
Okay I'll get them replaced or check them in my mechanics class
Ford Mechanic: A. Penland, Ford Senior Master Technician, ASE replied 1 month ago

Check for power to them with the key on and a pulsed ground while cranking. Do not just replace them. Also, use a mechanical fuel pressure gauge to check the actual fuel pressure. Should be 35-45 psi.

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